Cultivator



4N@ Modem 2 sheets-sheet 1.

W. I-I. BONWELL.

GULTIVATOR. No. 406,422. Patented July 9, 1'889. L ,/4

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(No Model.) 2 sheets-sheet 2. W. H. BONW-ELL.

GULTIVATOR.

No. 406,422. Patented July 9, 1889.

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WITNESSES: .M .//M

UNITED STATES PATENT OFFICE. i

VILLIAM H. BONWELL, OF BROOKVILLE, INDIANA.

CU LTlVATO R.

SPECIFICATION forming part of Letters Patent No. 406,422, dated July 9, 1889.

` Application led August 2]., 1888.

construction, combination, and relative arrangement of parts hereinafter more fullyA pointed out, tending to improve the machine and more perfectly ad apt it to the special uses of its class.

Mechanism embodying my invention is illustrated in the accompanying drawings, in which- Figure l is a plan view complete of the machine embodying my improvements. Fig. 2 is acorresponding side elevation; Fig. 3, a front elevation; Fig. 4, a perspective elevation of the axle-arch and its immediate connections; Fig. 5, an axial section of one of the wheel-hubs and spindle, showing the vertical pivotal connection with the arch-bar; Fig. 6, a detail plan showing the construction and arrangement of one of the sharebeam attachments; Fig. 7, a side elevation of the same parts shown sectioned in the plane ma@ of Fig. 6. Fig. 8 is a detached perspective view of one of the cap-plates shown in Figs. 6 and 7. Fig. 9 is a detached perspective view of the retaining-clip shown in Figs. 6 and 7, and Fig'. l0 is a detached view of the bifurcated link employed in holding up the share-beams when out of use.

Referring now to the drawings, A A desig; nate the bearing-wheels, and a a the pintles upon which the same run. These pintles are terminated at the rear by pivot-blocks a', and engage upon thelower vertical terminals c of the arch-bars G as pivots. These bars are bent as shown in Figs. 3 and et, and are connected across their upper vertical terminals c by the p cross-rod D, thus constituting the arch or bent axle usually employed in cultivators of this class. The cross-rod D is connected to the Vertical terminals c through the medium of blocks d, which are adjustable vertically upon Serial No. 283,314. (No model.)

the terminals c', and in which the rod D is adjustable horizontally, whereby the wheels A may be adj usted to varying distances apart, and the connecting-barD of the arch may be set at varying heights to clear the tops of the standing corn.

It will be observed that the wheel-pintles a are arranged to oscillate freely in a horizontal plane upon the pivots c; but the wheels are kept in the true line of 'draft by rigid attachment of the draft-bars B to the under side of the pintle-blocks a', the singletrees s being attached, in the usual manner, to the front ends of the draft-bars B.

The share-beams E are attached to the horizontal portions c2 of the arch-bars C in such manner as to swing pivotally thereon, both horizontally and vertically, and atv the same time allow of the adjustment of the sharebeams horizontally to bring the gangs of shares either closer together or farther apart, as desired. Theattachment is made by means of duplicate caps or blocks F. (Shown in perspective in Fig. 8*.) These caps or blocks are formed to embrace the horizontal portion c2 of the rod C, and the share-beams are bifurcated in front or provided with projecting straps e, extending` forward at the upper and lower sides of the beam, engaging upon the projecting pintles fv of the caps F. These caps, when clamped together by bolts around the horizontal portion c2 of the bar C, turn freely thereon, thus allowing the share-beams E to oscillate freely in a vertical plane, while the beams also oscillate freely in a horizontal plane upon the pintles f. The caps F are held to position adjustably upon the bar C by means of collars l), embracing the bar C within a central openingleft in the caps F. These collars` are held rigidly to the bar C by setscrews, which permit their adj ustment, laterally upon the bar as desired; but when adjusted they retainthe caps and the sharebeams E in a fixed position relatively to the arch and the bearing-wheels A.

The share-beams E are held suspended by means'of a coiled spring (or spring-chain) g, engaging upon the extensions of the rod l), and the vertical portion of the arch C is prevented from overturning under the weight of the share-beams by two trailing feet or supporting-bars h, fastened securely to the un- IOO der sides of the pintle-blocks a, and resting upon the ground somewhat to the, rear of the bearing-wheels A.

The share-beams E extend rearward from the pivotal connection bei'o're described, and are provided with the usual manipulatinghandles i.' and carry each three shares or shovels, arranged as follows: iirst, a share K at the inside of the beam and running close to the corn-row; second, a share Z on the outside ofthe beam, about fifteen inches from the iirst and about eight inches behind the first, and, third, a share m, depending from the rear of the beam centrally between the other two and ruiming about eight inches behind the last. The first and second of these shares in the order named are suspended primarily by their shanks n from lateral brackets o, secured to the beam, the shanks of all being connected adjustably to tie-rods p, extending forward and attached to the beam, by which means the angle of penetration of the shares is adjusted as desired and the shares securely held against the resistance of the earth. rlhe shares are held rotatably upon their shanks n by means of set-screws, by which they may be adjusted to throw outwardly or inwardly, as desired, at one side and the inner share K at the other.

The manipulating-handles are held to the share-beams by braces q and r, extending to the beam and to the outer ends et the brackcts o, as convenient.

In addition to the shares, each beam carries a clod-guard t, a plate of sheet-iron carried vertically just inside of and above each inner share K, upon a brace-rod r, bolted to the beam. These prevent clods upturned by the leading shovel or share from falling over against the stalks of corn, and are used when the shoots of grain are young and tender, and may be removed when not required.

A bifurcated link n# is employed for permanently suspending the share-beams from the arch-bar D when the machine is to be drawn to and from the field.

-The mode of operation in general is the same as that ot this type or class of cultivators. In detail, however, it will be obvious that by manipulating the set-screws in the blocks d the arch-bars C may be set as close together or as far apart as desired, while, without varying such adjustment, the bar D may be set as high or low as desired. XVithout varying either of the last-mentioned adjustments, the sharcbeains E may be set either closer together or lfarther apart, or either may be adjusted toward or from the other independently. It will also be observed that should one horse pull stronger than the other the share-beam is drawn forward without altering the true alignment either of itselt or its bearing-wheel in the line of draft. The alignment is preserved by the pivotal attaehment of the share-beam to the bar C, the pivotal attachment of the wheel-pintle to the bar C and the rigid attachment oi' the draftsbar I3 to the wheel-pintle acting in harmony.

It should be noted that the construction of may be used independently of the other and of the wheel and axle by detaching from thc blocks F and attaching a second handle fi. It then becomes and can be used as an ordinary eultivator with one horse.

I claim as my invention and desire to secure by Letters Patent ot theUnited Statesl. In a wheeled cultivator, the con1bina tion olan axle extended horizontally outward vfrom the central arch and bent downward terminally, \\'lieel,-pi11tles engaging said vertical terminals to swing horizontally upon the same as pivots, draft-bars rigidly secured directly to and extending forward 'from the wheel-pintles, coupling-blocks F, and sharebeams connected with the horizontal por- -tions of said axle, whereby an unequal strain upon one of the draft-bars is compensated for by the pivotal connection ol' the said wheels and share-beains with the axle and the proper aligmnent oi the cultivator preserved, substantially as described.

2. In a wheeled cultivator, the combination, with the axle and the share-beams, of: the coupling blocks or caps l1, each having a vertical pivot for connecting it with its share-beam, pivoted horizontally to the axle and having a central aperture, and a 'collar l) in said aperture emb acing the axle and held in any desired position by a set-screw, substantially as described.

3. In a wheeled cultivator, the combination, with the arched axle C and the pi voted share-beams E, of a bifurcated link n', adapted to be attached to the arched axle and elevate the sharebeams out of working position, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

WILLIAM Il. VI'KLNWELL. lViinesses:

Minn-iv B. OBvnNn, SAMUEL S. l [.u-znn'm..

the share-beams and share is such that either IOO IIO 

